Method canJump

55-jump-game/jump-game.java:4–14

(int[] nums)

class Solution {
    public boolean canJump(int[] nums) {
        int maxReach = 0;
        
        for (int i = 0; i < nums.length; i++) {
            if (i > maxReach) return false;
            maxReach = Math.max(maxReach, i + nums[i]);
            if (maxReach >= nums.length - 1) return true;
        }
        
        return true;
    }
}